AMD Ryzen 7 7800X vs AMD Ryzen 9 3900XT

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We compared two desktop CPUs: AMD Ryzen 7 7800X with 10 cores 4.5GHz and AMD Ryzen 9 3900XT with 12 cores 3.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 7 7800X 's Advantages

Released 2 years and 6 months late

Integrated graphics card

Higher specification of memory (DDR5-5200 vs DDR4-3200)

Newer PCIe version (5.0 vs 4.0)

Higher base frequency (4.5GHz vs 3.8GHz)

AMD Ryzen 9 3900XT 's Advantages

Larger L3 cache size (64MB vs 40MB)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 7 7800X +46%

1987

AMD Ryzen 9 3900XT

1352

Cinebench R23 Multi Core

AMD Ryzen 7 7800X +22%

22607

AMD Ryzen 9 3900XT

18436

Geekbench 5 Single Core

AMD Ryzen 7 7800X +59%

2097

AMD Ryzen 9 3900XT

1311

Geekbench 5 Multi Core

AMD Ryzen 7 7800X +31%

16163

AMD Ryzen 9 3900XT

12279

AMD Ryzen 7 7800X

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AMD Ryzen 9 3900XT

General Parameters

Jan 2023

Release Date

Jul 2020

AMD

Manufacturer

Amd

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 4 (Raphael)

Core Architecture

Zen 2 (Matisse)

AM5

Socket

AM4

Radeon Graphics (Ryzen 7000)

Integrated Graphics

No

Package

-

Transistor Count

3.8 billions

5 nm

Manufacturing Process

7 nm

AM5

Socket

AM4

105 W

Power Consumption

105 W

95°C

Peak Operating Temperature

95°C

CPU Performance

10

Performance Cores

12

20

Performance Core Threads

24

4.5 GHz

Performance Core Base Frequency

3.8 GHz

5.4 GHz

Performance Core Turbo Frequency

4.7 GHz

10

Total Core Count

12

20

Total Thread Count

24

100 MHz

Bus Frequency

100 MHz

45x

Multiplier

38x

-

L1 Cache

64 K per core

1 MB per core

L2 Cache

512 K per core

40 MB shared

L3 Cache

64 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR5-5200

Memory Types

DDR4-3200

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

-

Max Memory Bandwidth

47.68 GB/s

-

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

-

1500 MHz

GPU Base Frequency

-

2200 MHz

GPU Max Dynamic Frequency

-

128

Shader Units

-

8

Texture Units

-

4

Raster Operation Units

-

2

Execution Units

-

15 W

Power Consumption

-

0.54 TFLOPS

Graphics Performance

-

Miscellaneous

-

Official Website

AMD Ryzen 9 3900XT

5.0

PCIe Version

4.0

28

PCIe Lanes

24

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